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1
vote
3answers
127 views

How do I find the area between two polar curves?

More specifically above r=6 and below r=4+4cos(θ) graph of the two curves PolarPlot[{6, 4 + 4 Cos[t]}, {t, 0, 2 Pi}]
-1
votes
0answers
44 views

To Polar Plot one and two variables smoothly

Code for two variable case h[a_, b_] = PolarPlot[(1/2 (1 - Cos[2 a] + 2 Sin[a - b]))^2, {a, 0, Pi}, {b, 0, 1}] but possibly better ...
0
votes
0answers
77 views

spherical histogram for 3D object

I want to develop a shperical histogram for 3D object. Given a 3D object, I put it in a cylinder where its axis pass through the centroid of the object. The cylinder is sampled into a number N of ...
1
vote
2answers
150 views

3D Sphere Plot + Points [closed]

I'm currently trying to create a 3D plot of a sphere along with four points of different colour, using the following code: ...
3
votes
2answers
159 views

Different between two graph in the Polar Plane

How can I plot $\theta=\cos r$ in polar plane? Of course I know that is different with $r=\cos \theta.$
2
votes
2answers
203 views

How do you create such an animated GIF via Mathematica?

Is it possible to create such kind of GIF via Mathematica?
0
votes
1answer
72 views

3D sphere plot, along with singular points [closed]

I have very little experience with mathematica, what I am trying to do is plot 4 points on 3D axes, say a,b,c,d and then also plot a sphere radius r centred on a. Any help would be much ...
11
votes
2answers
220 views

Combine Stereographic “Entity” Plot of Arctic Sea with Contour Plot

In the announcement of Mathematica 10 there were some very cool features for every geo-related researcher. Like this one what i'm trying to do is to overlay an ContourPlot onto this beautiful arctic ...
4
votes
4answers
136 views

What is wrong with this code?

I am plotting polar curves with PolarPlot and I tried plotting a parabola with $\frac{2}{1-\cos x}$ and $\sec x$. Obviously there are two singularities that have ...
6
votes
2answers
124 views

PolarPlot with Dashed and PlotRange freezes for simple function

When I plot PolarPlot[1/(1+Cos[6-t]), {t,0,2\[Pi]}, PlotRange->{{-4,4},{-4,4}}, PlotStyle->Dashed] everything works normally, but when I change the ...
5
votes
1answer
342 views
15
votes
2answers
817 views

How to wrap a plot around a circle?

Consider the code a = Table[BesselJ[i, x], {i, 0, 3}] Plot[a, {x, 0, 20}, Axes -> False] producing I'd like to transform the plot into a circle. In other ...
0
votes
1answer
185 views

Order contour points in clockwise

I want to describe shape of an object using contour points descriptor. Given a silhouette (image black white of an object), I extrait the contour points using EdgeDetect[] fonction. After that, I need ...
7
votes
3answers
310 views

Need help with plotting triple data points while xy data are not regular?

recently I plotted some figure in matlab whose quality is not so satisfactory, so I come to mathematica as my supervisor suggested. This is how it looks like in matlab:. In matlab I have three m by n ...
7
votes
1answer
289 views

Plotting a region with polar axes

I want to plot the region of points who satisfy the following equation: 2 < r <= 5 && 3/4 π < θ <= 5/4 π I have been able to plot region in ...
6
votes
1answer
159 views

ListPolarPlot: 0 Degree at vertical axis

Is it possible to have ListPolarPlot start plotting at the vertical axis? By Default ListPolarPlot gives this result: ...